Date: Tue, 6 Oct 2020 23:29:26 +0300 From: Daniel Braniss <danny@cs.huji.ac.il> To: Andriy Gapon <avg@FreeBSD.org> Cc: Emmanuel Vadot <manu@bidouilliste.com>, "freebsd-arm@freebsd.org" <arm@FreeBSD.org> Subject: Re: nanopi/allwinner i2c not working. Message-ID: <260839FF-7297-4FDC-82AC-13797938AC29@cs.huji.ac.il> In-Reply-To: <ec611752-8c5f-c4e7-18f2-bafd4a34e594@FreeBSD.org> References: <234D06ED-C99F-477E-8D95-492979084E7A@cs.huji.ac.il> <d154f62f-cf41-aaac-4bae-89ee48163afa@FreeBSD.org> <E2E23A4F-9D51-4803-BFF1-B5B2BBE56576@cs.huji.ac.il> <7934CE38-DC3F-450A-A131-19A7F88DA9EC@cs.huji.ac.il> <e1dd71e2-9ee3-380d-7be9-601a3015652c@FreeBSD.org> <20201006104119.28f2262d47107d41025d193f@bidouilliste.com> <29A34854-E792-48CE-AF0A-E4C605BDFC3B@cs.huji.ac.il> <6416CA90-AB4C-4F8A-BCF4-7C9E5A4F2F8D@cs.huji.ac.il> <0ba109b4-784f-19ed-e52d-a40b75af872c@FreeBSD.org> <7C27FB6C-BF0D-4DAE-99D0-50849D2FBA5E@cs.huji.ac.il> <ecc5c0cf-3a5f-ef24-8270-3b95354ee7d9@FreeBSD.org> <F36B7EDD-B9A8-4D9B-854E-B54BFE678AB9@cs.huji.ac.il> <43a5d626-634c-2cc2-e8a5-ad4326a2d6e2@FreeBSD.org> <77DC054E-07B2-48F8-8051-C2796EE991B2@cs.huji.ac.il> <ec611752-8c5f-c4e7-18f2-bafd4a34e594@FreeBSD.org>
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> On 6 Oct 2020, at 17:22, Andriy Gapon <avg@FreeBSD.org> wrote: >=20 > On 06/10/2020 17:00, Daniel Braniss wrote: >> not too proud of it, but i=E2=80=99ll make it available. >> it=E2=80=99s in https://www.cs.huji.ac.il/~danny/elockc.tar.bz >> look in i2c.c >>=20 >> in any case it works fine in 12.1. >=20 > And it looks good to me as well. > Could you please collect twsi debug output again? > In head you do not need to recompile, you can just set = hw.i2c.twsi_debug. i did have to recompile iichb0: twsi_calc_baud_rate: Bus clock is at 24000000 iichb0: twsi_reset: Using clock param=3D59 iichb0: TWSI_WRITE: Writing 0 to 18 iichb0: TWSI_WRITE: Writing 59 to 14 iichb0: TWSI_WRITE: Writing 40 to c iichb0: twsi_calc_baud_rate: Bus clock is at 24000000 iichb0: twsi_reset: Using clock param=3D59 iichb0: TWSI_WRITE: Writing 0 to 18 iichb0: TWSI_WRITE: Writing 59 to 14 iichb0: TWSI_WRITE: Writing 40 to c iichb0: TWSI_WRITE: Writing c4 to c iichb0: twsi_transfer: transmitting 2 messages iichb0: TWSI_READ: read f8 from 10 iichb0: twsi_transfer: status=3Df8 iichb0: twsi_transfer: msg 0 is 9 bytes long iichb0: twsi_transfer: msg 1 is 7 bytes long iichb0: TWSI_WRITE: Writing e4 to c iichb0: twsi_intr: Got interrupt Current msg=3D0 iichb0: TWSI_READ: read 8 from 10 iichb0: TWSI_READ: read cc from c iichb0: twsi_intr: reg control=3Dcc iichb0: twsi_intr: Send the address (48)iichb0: TWSI_WRITE: Writing 48 = to 8 iichb0: TWSI_WRITE: Writing c4 to c iichb0: twsi_intr: Refresh reg_control iichb0: TWSI_WRITE: Writing cc to c iichb0: twsi_intr: Done with interrupts iichb0: twsi_intr: Got interrupt Current msg=3D0 iichb0: TWSI_READ: read 20 from 10 iichb0: TWSI_READ: read cc from c iichb0: twsi_intr: reg control=3Dcc iichb0: twsi_intr: No ack received after transmitting the address iichb0: twsi_intr: Refresh reg_control iichb0: twsi_transfer: pause finish iichb0: TWSI_WRITE: Writing 8 to c iichb0: twsi_transfer: Error, aborting (2) iichb0: twsi_intr: Done with interrupts iichb0: TWSI_WRITE: Writing 0 to c iichb0: TWSI_READ: read 30 from 10 iichb0: twsi_transfer: status=3D30 iichb0: TWSI_WRITE: Writing 0 to c iichb0: TWSI_READ: read 30 from 10 iichb0: twsi_transfer: status=3D30 iichb0: TWSI_WRITE: Writing c4 to c iichb0: twsi_transfer: transmitting 2 messages iichb0: twsi_intr: Got interrupt Current msg=3D0 iichb0: TWSI_READ: read 30 from 10 iichb0: TWSI_READ: read 30 from 10 iichb0: twsi_transfer: status=3D30 iichb0: TWSI_READ: read cc from c iichb0: twsi_transfer: msg 0 is 9 bytes long iichb0: twsi_intr: reg control=3Dcc iichb0: twsi_transfer: msg 1 is 7 bytes long iichb0: twsi_intr: status=3D30 hot handled iichb0: TWSI_WRITE: Writing e4 to c iichb0: twsi_intr: Refresh reg_control iichb0: twsi_transfer: pause finish iichb0: TWSI_WRITE: Writing 8 to c iichb0: twsi_transfer: Error, aborting (1) iichb0: twsi_intr: Done with interrupts iichb0: TWSI_WRITE: Writing 0 to c iichb0: TWSI_READ: read 10 from 10 iichb0: twsi_transfer: status=3D10 iichb0: TWSI_WRITE: Writing 0 to c iichb0: TWSI_READ: read 10 from 10 iichb0: twsi_transfer: status=3D10 >=20 > --=20 > Andriy Gapon
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